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loking for a device to enlarge a pattern by tracing it? Answered

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NobodyInParticular (author)2009-03-04

A pantograph is nice for tracing an outline quickly, but it might be more than you need. If you want to greatly enlarge a pattern, the grid method is the way to go: You draw a small grid across your small image, a big grid across your big surface, and copy the shape you see in each small square to the corresponding big square.

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frollard (author)2009-03-04

You want a pantograph

http://www.daube.ch/docu/glossary/drawingtools.html#pantograph

You put a pen in one side, and a stylus in the other (depending on if you want to scale up or down.

they're cheap to buy, and cheaper to make (out of a few paint stir sticks and bolts)

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frollard (author)frollard2009-03-04

see attached image for the deadly easy version using cardboard and tacks.

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frollard (author)frollard2009-03-04

Same principle, but instead of a pen, you use a router to carve the pattern into wood. Skip to the last half to see it in use.

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